<template>
  <!-- <view class="w-full" :style="{ height: navbarHeight }" /> -->
  <view
    class="uni-navbar w-full z-999 top-0"
    :class="{ 'uni-dark': dark, 'uni-nvue-fixed': fixed }"
  >
    <view
      class="uni-navbar__content"
      :class="{
        'uni-navbar--fixed': fixed,
        'uni-navbar--shadow': shadow,
        'uni-navbar--border': border
      }"
      :style="{ 'background-color': themeBgColor }"
    >
      <view
        :style="{ color: themeColor, backgroundColor: themeBgColor, height: navbarHeight }"
        class="uni-navbar__header"
      >
        <view
          class="uni-navbar__header-btns uni-navbar__header-btns-left"
          :style="{ width: leftIconWidth }"
          @tap="onClickLeft"
        >
          <slot name="left">
            <view v-if="leftIcon.length > 0" class="uni-navbar__content_view">
              <uni-icons :color="themeColor" :type="leftIcon" size="20" />
            </view>
            <view
              v-if="leftText.length"
              :class="{ 'uni-navbar-btn-icon-left': !leftIcon.length > 0 }"
              class="uni-navbar-btn-text"
            >
              <text :style="{ color: '#333', fontSize: '18px', fontWeight: 600 }">{{
                leftText
              }}</text>
            </view>
          </slot>
        </view>
        <view class="uni-navbar__header-container" @tap="onClickTitle">
          <slot>
            <view v-if="title.length > 0" class="uni-navbar__header-container-inner">
              <text class="uni-nav-bar-text uni-ellipsis-1" :style="{ color: themeColor }">{{
                title
              }}</text>
            </view>
          </slot>
        </view>
        <view
          class="uni-navbar__header-btns uni-navbar__header-btns-right"
          :style="{ width: rightIconWidth, height: navbarHeight }"
          @click="onClickRight"
        >
          <slot name="right">
            <view class="w-full px-1 flex justify-around">
              <uni-icons :color="themeColor" type="search" size="22" />
              <uni-badge
                class="uni-badge-left-margin"
                :is-dot="true"
                :text="'1'"
                absolute="rightTop"
                :offset="[5, 5]"
                size="normal"
              >
                <uni-icons :color="themeColor" type="notification-filled" size="22" />
              </uni-badge>
            </view>
          </slot>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
import { useAppStore } from '@/store'
const getVal = (val) => (typeof val === 'number' ? val + 'px' : val)

/**
 *
 *
 * NavBar 自定义导航栏
 * @description 导航栏组件，主要用于头部导航
 * @tutorial https://ext.dcloud.net.cn/plugin?id=52
 * @property {Boolean} dark 开启黑暗模式
 * @property {String} title 标题文字
 * @property {String} leftText 左侧按钮文本
 * @property {String} rightText 右侧按钮文本
 * @property {String} leftIcon 左侧按钮图标（图标类型参考 [Icon 图标](http://ext.dcloud.net.cn/plugin?id=28) type 属性）
 * @property {String} rightIcon 右侧按钮图标（图标类型参考 [Icon 图标](http://ext.dcloud.net.cn/plugin?id=28) type 属性）
 * @property {String} color 图标和文字颜色
 * @property {String} backgroundColor 导航栏背景颜色
 * @property {Boolean} fixed = [true|false] 是否固定顶部
 * @property {Boolean} statusBar = [true|false] 是否包含状态栏
 * @property {Boolean} shadow = [true|false] 导航栏下是否有阴影
 * @property {Boolean} stat 是否开启统计标题上报
 * @event {Function} clickLeft 左侧按钮点击时触发
 * @event {Function} clickRight 右侧按钮点击时触发
 * @event {Function} clickTitle 中间标题点击时触发
 */
export default {
  name: 'UniNavBar',
  components: {},
  props: {
    dark: {
      type: Boolean,
      default: false
    },
    title: {
      type: String,
      default: ''
    },
    leftText: {
      type: String,
      default: ''
    },
    rightText: {
      type: String,
      default: ''
    },
    leftIcon: {
      type: String,
      default: ''
    },
    rightIcon: {
      type: String,
      default: ''
    },
    fixed: {
      type: [Boolean, String],
      default: false
    },
    color: {
      type: String,
      default: ''
    },
    backgroundColor: {
      type: String,
      default: ''
    },
    statusBar: {
      type: [Boolean, String],
      default: false
    },
    shadow: {
      type: [Boolean, String],
      default: false
    },
    border: {
      type: [Boolean, String],
      default: true
    },
    height: {
      type: [Number, String],
      default: 44
    },
    leftWidth: {
      type: [Number, String],
      default: 60
    },
    rightWidth: {
      type: [Number, String],
      default: 80
    },
    stat: {
      type: [Boolean, String],
      default: ''
    }
  },
  emits: ['clickLeft', 'clickRight', 'clickTitle'],
  computed: {
    themeBgColor() {
      if (this.dark) {
        // 默认值
        if (this.backgroundColor) {
          return this.backgroundColor
        } else {
          return this.dark ? '#333' : '#FFF'
        }
      }
      return this.backgroundColor || '#FFF'
    },
    themeColor() {
      if (this.dark) {
        // 默认值
        if (this.color) {
          return this.color
        } else {
          return this.dark ? '#fff' : '#333'
        }
      }
      return this.color || '#333'
    },
    navbarHeight() {
      return getVal(useAppStore().navBarHeight)
    },
    leftIconWidth() {
      return getVal(this.leftWidth)
    },
    rightIconWidth() {
      return getVal(this.rightWidth)
    }
  },
  mounted() {
    if (uni.report && this.stat && this.title !== '') {
      uni.report('title', this.title)
    }
  },
  methods: {
    onClickLeft() {
      this.$emit('clickLeft')
    },
    onClickRight() {
      this.$emit('clickRight')
    },
    onClickTitle() {
      this.$emit('clickTitle')
    }
  }
}
</script>

<style lang="scss" scoped>
// $nav-height: 44px;

.uni-nvue-fixed {
  /* #ifdef APP-NVUE */
  position: sticky;
  /* #endif */
}
.uni-navbar {
  // box-sizing: border-box;
}

.uni-nav-bar-text {
  /* #ifdef APP-PLUS */
  font-size: 34rpx;
  /* #endif */
  /* #ifndef APP-PLUS */
  font-size: 14px;
  /* #endif */
}

.uni-nav-bar-right-text {
  font-size: 12px;
}

.uni-navbar__content {
  position: relative;
  // background-color: #fff;
  // box-sizing: border-box;
  background-color: transparent;
}

.uni-navbar__content_view {
  // box-sizing: border-box;
}

.uni-navbar-btn-text {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  line-height: 12px;
}

.uni-navbar__header {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  padding: 0 10px;
  flex-direction: row;
  // height: $nav-height;
  font-size: 12px;
}

.uni-navbar__header-btns {
  /* #ifndef APP-NVUE */
  overflow: hidden;
  display: flex;
  /* #endif */
  flex-wrap: nowrap;
  flex-direction: row;
  width: 120rpx;
  // padding: 0 6px;
  justify-content: center;
  align-items: center;
  /* #ifdef H5 */
  cursor: pointer;
  /* #endif */
}

.uni-navbar__header-btns-left {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  width: 120rpx;
  justify-content: flex-start;
  align-items: center;
}

.uni-navbar__header-btns-right {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  flex-direction: row;
  // width: 150rpx;
  // padding-right: 30rpx;
  justify-content: flex-end;
  align-items: center;
}

.uni-navbar__header-container {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  flex: 1;
  padding: 0 10px;
  overflow: hidden;
}

.uni-navbar__header-container-inner {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  flex: 1;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  overflow: hidden;
  // box-sizing: border-box;
}

.uni-navbar__placeholder-view {
  // height: $nav-height;
}

.uni-navbar--fixed {
  position: fixed;
  z-index: 998;
  /* #ifdef H5 */
  left: var(--window-left);
  right: var(--window-right);
  /* #endif */
  /* #ifndef H5 */
  left: 0;
  right: 0;
  /* #endif */
}

.uni-navbar--shadow {
  box-shadow: 0 1px 6px #ccc;
}

.uni-navbar--border {
  border-bottom-width: 1rpx;
  border-bottom-style: solid;
  border-bottom-color: #eee;
}

.uni-ellipsis-1 {
  overflow: hidden;
  /* #ifndef APP-NVUE */
  white-space: nowrap;
  text-overflow: ellipsis;
  /* #endif */
  /* #ifdef APP-NVUE */
  lines: 1;
  text-overflow: ellipsis;
  /* #endif */
}

// 暗主题配置
.uni-dark {
}
</style>
